Civil Engineering - Hydraulics - Discussion

Discussion Forum : Hydraulics - Section 1 (Q.No. 33)
33.
An ideal flow of a liquid obeys
Continuity equation
Newton's law of viscosity
Newton's second law of motion
dynamic viscosity law,
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 1 of 2.

Firoj said:   1 decade ago
As mass is neither be created nor be destroyed so that is applicable only for ideal fluid in practice some amount of mass is lost.

Rajesh thakur said:   9 years ago
But the same question have been asked in HP PWD (civil) exam and as per their answer key, the answer is option B.

So, please tell me, which is correct?

Jack said:   9 years ago
@ Rajesh.

Ideal fluid is the fluid which has no viscosity. So, how can it obey Newton's law of viscosity. Answer (A) is correct answer.

Baloch said:   9 years ago
How come it obeys Continuity Equation?

Continuity equation is applicable if the fluid is compressible but Ideal fluids are incompressible.

Deepak said:   8 years ago
Continuity equation is dependent on flow characteristics rather than Fluid characteristics whereas the Ideality of a fluid is related to the fluid property instead of Flow.

So how continuity equation can justify the idealness of a fluid?

Kiccha said:   8 years ago
Ideal fluid is incompressible and non viscous so it's does not follow the newton law of viscosity.

Newtonian fluid follow the newton law of viscosity.

Salman said:   8 years ago
Ideal fluid obeys continuity equation.

Jiren said:   8 years ago
We use ideal fluid in 2 equations:

1.Continuity equation
2.Bernoulli equation
(1)

Ravi kumar maddheshiya said:   8 years ago
In ideal flow it does not fallow viscocity then answer is A.

Pankaj said:   6 years ago
Ideal fluid.

- Hypothetical and imaginary fluid.
- Friction less or inviscid fluid (0 viscosity).
- No surface tension.
- InCompressible.


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